Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.149
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
4: # Functions for use by content handlers:
5: #
1.112 harris41 6: # metadata_query(sql-query-string,custom-metadata-regex) :
7: # returns file handle of where sql and
8: # regex results will be stored for query
1.12 www 9: # plaintext(short) : plain text explanation of short term
1.25 www 10: # fileembstyle(ext) : embed style in page for file extension
11: # filedescription(ext) : descriptor text for file extension
1.29 www 12: # allowed(short,url) : returns codes for allowed actions
13: # F: full access
14: # U,I,K: authentication modes (cxx only)
15: # '': forbidden
16: # 1: user needs to choose course
17: # 2: browse allowed
1.21 www 18: # definerole(rolename,sys,dom,cou) : define a custom role rolename
1.103 harris41 19: # set privileges in format of lonTabs/roles.tab for
1.21 www 20: # system, domain and course level,
21: # assignrole(udom,uname,url,role,end,start) : give a role to a user for the
22: # level given by url. Optional start and end dates
23: # (leave empty string or zero for "no date")
24: # assigncustomrole (udom,uname,url,rdom,rnam,rolename,end,start) : give a
25: # custom role to a user for the level given by url.
26: # Specify name and domain of role author, and role name
27: # revokerole (udom,uname,url,role) : Revoke a role for url
28: # revokecustomrole (udom,uname,url,rdom,rnam,rolename) : Revoke a custom role
1.24 www 29: # appenv(hash) : adds hash to session environment
1.56 www 30: # delenv(varname) : deletes all environment entries starting with varname
1.124 www 31: # store(hashref,symb,courseid,udom,uname)
1.122 albertel 32: # : stores hash permanently for this url
33: # hashref needs to be given, and should be a \%hashname
34: # the remaining args aren't required and if they aren't
35: # passed or are '' they will be derived from the ENV
1.124 www 36: # cstore(hashref,symb,courseid,udom,uname)
1.122 albertel 37: # : same as store but uses the critical interface to
38: # guarentee a store
1.124 www 39: # restore(symb,courseid,udom,uname)
1.122 albertel 40: # : returns hash for this symb, all args are optional
1.124 www 41: # if they aren't given they will be derived from the
42: # current enviroment
1.133 albertel 43: #
44: #
1.134 albertel 45: # for the next 6 functions udom and uname are optional
1.133 albertel 46: # if supplied they use udom as the domain and uname
47: # as the username for the function (supply a courseid
48: # for the uname if you want a course database)
49: # if not supplied it uses %ENV and looks at
50: # user. attribute for the values
51: #
52: # eget(namesp,arrayref,udom,uname)
53: # : returns hash with keys from array reference filled
54: # in from namesp (encrypts the return communication)
1.131 albertel 55: # get(namesp,arrayref,udom,uname)
56: # : returns hash with keys from array reference filled
57: # in from namesp
1.133 albertel 58: # dump(namesp,udom,uname) : dumps the complete namespace into a hash
59: # del(namesp,array,udom,uname) : deletes keys out of array from namesp
1.134 albertel 60: # put(namesp,hash,udom,uname) : stores hash in namesp
61: # cput(namesp,hash,udom,uname) : critical put
1.133 albertel 62: #
63: #
1.23 www 64: # ssi(url,hash) : does a complete request cycle on url to localhost, posts
65: # hash
1.34 www 66: # coursedescription(id) : returns and caches course description for id
1.17 www 67: # repcopy(filename) : replicate file
68: # dirlist(url) : gets a directory listing
1.40 www 69: # directcondval(index) : reading condition value of single condition from
70: # state string
1.28 www 71: # condval(index) : value of condition index based on state
1.58 www 72: # EXT(name) : value of a variable
1.31 www 73: # symblist(map,hash) : Updates symbolic storage links
1.44 www 74: # symbread([filename]) : returns the data handle (filename optional)
1.76 www 75: # rndseed() : returns a random seed
76: # receipt() : returns a receipt to be given out to users
1.36 albertel 77: # getfile(filename) : returns the contents of filename, or a -1 if it can't
78: # be found, replicates and subscribes to the file
1.121 harris41 79: # filelocation(dir,file) : returns a fairly clean absolute reference to file
1.36 albertel 80: # from the directory dir
1.46 www 81: # hreflocation(dir,file) : same as filelocation, but for hrefs
1.47 www 82: # log(domain,user,home,msg) : write to permanent log for user
1.70 www 83: # usection(domain,user,courseid) : output of section name/number or '' for
84: # "not in course" and '-1' for "no section"
85: # userenvironment(domain,user,what) : puts out any environment parameter
86: # for a user
87: # idput(domain,hash) : writes IDs for users from hash (name=>id,name=>id)
88: # idget(domain,array): returns hash with usernames (id=>name,id=>name) for
89: # an array of IDs
90: # idrget(domain,array): returns hash with IDs for usernames (name=>id,...) for
91: # an array of names
1.73 www 92: # metadata(file,entry): returns the metadata entry for a file. entry='keys'
93: # returns a comma separated list of keys
1.12 www 94: #
1.1 albertel 95: # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
1.5 www 96: # 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19,
1.8 www 97: # 11/8,11/16,11/18,11/22,11/23,12/22,
1.12 www 98: # 01/06,01/13,02/24,02/28,02/29,
99: # 03/01,03/02,03/06,03/07,03/13,
1.15 www 100: # 04/05,05/29,05/31,06/01,
101: # 06/05,06/26 Gerd Kortemeyer
102: # 06/26 Ben Tyszka
1.22 www 103: # 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer
1.23 www 104: # 08/14 Ben Tyszka
1.36 albertel 105: # 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer
1.35 www 106: # 10/04 Gerd Kortemeyer
1.36 albertel 107: # 10/04 Guy Albertelli
1.54 www 108: # 10/06,10/09,10/10,10/11,10/14,10/20,10/23,10/25,10/26,10/27,10/28,10/29,
1.71 www 109: # 10/30,10/31,
1.75 www 110: # 11/2,11/14,11/15,11/16,11/20,11/21,11/22,11/25,11/27,
1.83 www 111: # 12/02,12/12,12/13,12/14,12/28,12/29 Gerd Kortemeyer
1.87 www 112: # 05/01/01 Guy Albertelli
1.89 www 113: # 05/01,06/01,09/01 Gerd Kortemeyer
1.92 www 114: # 09/01 Guy Albertelli
1.102 www 115: # 09/01,10/01,11/01 Gerd Kortemeyer
1.103 harris41 116: # 02/27/01 Scott Harrison
1.104 www 117: # 3/2 Gerd Kortemeyer
1.119 harris41 118: # 3/15,3/19 Scott Harrison
1.110 www 119: # 3/19,3/20 Gerd Kortemeyer
1.123 harris41 120: # 3/22,3/27,4/2,4/16,4/17 Scott Harrison
1.125 www 121: # 5/26,5/28 Gerd Kortemeyer
1.127 ng 122: # 5/30 H. K. Ng
1.128 www 123: # 6/1 Gerd Kortemeyer
1.135 www 124: # July Guy Albertelli
1.149 ! www 125: # 8/4,8/7,8/8,8/9,8/11,8/16 Gerd Kortemeyer
1.128 www 126:
1.1 albertel 127: package Apache::lonnet;
128:
129: use strict;
130: use Apache::File;
1.8 www 131: use LWP::UserAgent();
1.15 www 132: use HTTP::Headers;
1.11 www 133: use vars
1.135 www 134: qw(%perlvar %hostname %homecache %spareid %hostdom %libserv %pr %prp %fe %fd $readit %metacache %packagetab);
1.1 albertel 135: use IO::Socket;
1.31 www 136: use GDBM_File;
1.8 www 137: use Apache::Constants qw(:common :http);
1.71 www 138: use HTML::TokeParser;
1.88 www 139: use Fcntl qw(:flock);
1.1 albertel 140:
141: # --------------------------------------------------------------------- Logging
142:
143: sub logthis {
144: my $message=shift;
145: my $execdir=$perlvar{'lonDaemons'};
146: my $now=time;
147: my $local=localtime($now);
148: my $fh=Apache::File->new(">>$execdir/logs/lonnet.log");
149: print $fh "$local ($$): $message\n";
150: return 1;
151: }
152:
153: sub logperm {
154: my $message=shift;
155: my $execdir=$perlvar{'lonDaemons'};
156: my $now=time;
157: my $local=localtime($now);
158: my $fh=Apache::File->new(">>$execdir/logs/lonnet.perm.log");
159: print $fh "$now:$message:$local\n";
160: return 1;
161: }
162:
163: # -------------------------------------------------- Non-critical communication
164: sub subreply {
165: my ($cmd,$server)=@_;
166: my $peerfile="$perlvar{'lonSockDir'}/$server";
167: my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
168: Type => SOCK_STREAM,
169: Timeout => 10)
170: or return "con_lost";
171: print $client "$cmd\n";
172: my $answer=<$client>;
1.9 www 173: if (!$answer) { $answer="con_lost"; }
1.1 albertel 174: chomp($answer);
175: return $answer;
176: }
177:
178: sub reply {
179: my ($cmd,$server)=@_;
180: my $answer=subreply($cmd,$server);
181: if ($answer eq 'con_lost') { $answer=subreply($cmd,$server); }
1.65 www 182: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.12 www 183: &logthis("<font color=blue>WARNING:".
184: " $cmd to $server returned $answer</font>");
185: }
1.1 albertel 186: return $answer;
187: }
188:
189: # ----------------------------------------------------------- Send USR1 to lonc
190:
191: sub reconlonc {
192: my $peerfile=shift;
193: &logthis("Trying to reconnect for $peerfile");
194: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
195: if (my $fh=Apache::File->new("$loncfile")) {
196: my $loncpid=<$fh>;
197: chomp($loncpid);
198: if (kill 0 => $loncpid) {
199: &logthis("lonc at pid $loncpid responding, sending USR1");
200: kill USR1 => $loncpid;
201: sleep 1;
202: if (-e "$peerfile") { return; }
203: &logthis("$peerfile still not there, give it another try");
204: sleep 5;
205: if (-e "$peerfile") { return; }
1.12 www 206: &logthis(
207: "<font color=blue>WARNING: $peerfile still not there, giving up</font>");
1.1 albertel 208: } else {
1.12 www 209: &logthis(
210: "<font color=blue>WARNING:".
211: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 212: }
213: } else {
1.12 www 214: &logthis('<font color=blue>WARNING: lonc not running, giving up</font>');
1.1 albertel 215: }
216: }
217:
218: # ------------------------------------------------------ Critical communication
1.12 www 219:
1.1 albertel 220: sub critical {
221: my ($cmd,$server)=@_;
1.89 www 222: unless ($hostname{$server}) {
223: &logthis("<font color=blue>WARNING:".
224: " Critical message to unknown server ($server)</font>");
225: return 'no_such_host';
226: }
1.1 albertel 227: my $answer=reply($cmd,$server);
228: if ($answer eq 'con_lost') {
229: my $pingreply=reply('ping',$server);
230: &reconlonc("$perlvar{'lonSockDir'}/$server");
231: my $pongreply=reply('pong',$server);
232: &logthis("Ping/Pong for $server: $pingreply/$pongreply");
233: $answer=reply($cmd,$server);
234: if ($answer eq 'con_lost') {
235: my $now=time;
236: my $middlename=$cmd;
1.5 www 237: $middlename=substr($middlename,0,16);
1.1 albertel 238: $middlename=~s/\W//g;
239: my $dfilename=
240: "$perlvar{'lonSockDir'}/delayed/$now.$middlename.$server";
241: {
242: my $dfh;
243: if ($dfh=Apache::File->new(">$dfilename")) {
1.7 www 244: print $dfh "$cmd\n";
1.1 albertel 245: }
246: }
247: sleep 2;
248: my $wcmd='';
249: {
250: my $dfh;
251: if ($dfh=Apache::File->new("$dfilename")) {
252: $wcmd=<$dfh>;
253: }
254: }
255: chomp($wcmd);
1.7 www 256: if ($wcmd eq $cmd) {
1.12 www 257: &logthis("<font color=blue>WARNING: ".
258: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 259: &logperm("D:$server:$cmd");
260: return 'con_delayed';
261: } else {
1.12 www 262: &logthis("<font color=red>CRITICAL:"
263: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 264: &logperm("F:$server:$cmd");
265: return 'con_failed';
266: }
267: }
268: }
269: return $answer;
270: }
271:
1.5 www 272: # ---------------------------------------------------------- Append Environment
273:
274: sub appenv {
1.6 www 275: my %newenv=@_;
1.35 www 276: map {
277: if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) {
278: &logthis("<font color=blue>WARNING: ".
279: "Attempt to modify environment ".$_." to ".$newenv{$_});
280: delete($newenv{$_});
281: } else {
282: $ENV{$_}=$newenv{$_};
283: }
284: } keys %newenv;
1.95 www 285:
286: my $lockfh;
287: unless ($lockfh=Apache::File->new("$ENV{'user.environment'}")) {
1.97 www 288: return 'error: '.$!;
1.95 www 289: }
290: unless (flock($lockfh,LOCK_EX)) {
291: &logthis("<font color=blue>WARNING: ".
292: 'Could not obtain exclusive lock in appenv: '.$!);
293: $lockfh->close();
294: return 'error: '.$!;
295: }
296:
1.6 www 297: my @oldenv;
298: {
299: my $fh;
300: unless ($fh=Apache::File->new("$ENV{'user.environment'}")) {
1.97 www 301: return 'error: '.$!;
1.6 www 302: }
303: @oldenv=<$fh>;
1.89 www 304: $fh->close();
1.6 www 305: }
306: for (my $i=0; $i<=$#oldenv; $i++) {
307: chomp($oldenv[$i]);
1.9 www 308: if ($oldenv[$i] ne '') {
309: my ($name,$value)=split(/=/,$oldenv[$i]);
1.24 www 310: unless (defined($newenv{$name})) {
311: $newenv{$name}=$value;
312: }
1.9 www 313: }
1.6 www 314: }
315: {
316: my $fh;
317: unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) {
318: return 'error';
319: }
320: my $newname;
1.93 www 321: foreach $newname (keys %newenv) {
1.6 www 322: print $fh "$newname=$newenv{$newname}\n";
323: }
1.86 albertel 324: $fh->close();
1.56 www 325: }
1.95 www 326:
327: $lockfh->close();
1.56 www 328: return 'ok';
329: }
330: # ----------------------------------------------------- Delete from Environment
331:
332: sub delenv {
333: my $delthis=shift;
334: my %newenv=();
335: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
336: &logthis("<font color=blue>WARNING: ".
337: "Attempt to delete from environment ".$delthis);
338: return 'error';
339: }
340: my @oldenv;
341: {
342: my $fh;
343: unless ($fh=Apache::File->new("$ENV{'user.environment'}")) {
344: return 'error';
345: }
1.89 www 346: unless (flock($fh,LOCK_SH)) {
347: &logthis("<font color=blue>WARNING: ".
348: 'Could not obtain shared lock in delenv: '.$!);
349: $fh->close();
350: return 'error: '.$!;
351: }
1.56 www 352: @oldenv=<$fh>;
1.89 www 353: $fh->close();
1.56 www 354: }
355: {
356: my $fh;
357: unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) {
358: return 'error';
359: }
1.89 www 360: unless (flock($fh,LOCK_EX)) {
361: &logthis("<font color=blue>WARNING: ".
362: 'Could not obtain exclusive lock in delenv: '.$!);
363: $fh->close();
364: return 'error: '.$!;
365: }
1.56 www 366: map {
367: unless ($_=~/^$delthis/) { print $fh $_; }
368: } @oldenv;
1.87 www 369: $fh->close();
1.5 www 370: }
371: return 'ok';
372: }
1.1 albertel 373:
374: # ------------------------------ Find server with least workload from spare.tab
1.11 www 375:
1.1 albertel 376: sub spareserver {
377: my $tryserver;
378: my $spareserver='';
379: my $lowestserver=100;
380: foreach $tryserver (keys %spareid) {
381: my $answer=reply('load',$tryserver);
382: if (($answer =~ /\d/) && ($answer<$lowestserver)) {
383: $spareserver="http://$hostname{$tryserver}";
384: $lowestserver=$answer;
385: }
386: }
387: return $spareserver;
388: }
389:
390: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 391:
1.1 albertel 392: sub authenticate {
393: my ($uname,$upass,$udom)=@_;
1.12 www 394: $upass=escape($upass);
1.1 albertel 395: if (($perlvar{'lonRole'} eq 'library') &&
396: ($udom eq $perlvar{'lonDefDomain'})) {
1.3 www 397: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$perlvar{'lonHostID'});
1.2 www 398: if ($answer =~ /authorized/) {
1.9 www 399: if ($answer eq 'authorized') {
400: &logthis("User $uname at $udom authorized by local server");
401: return $perlvar{'lonHostID'};
402: }
403: if ($answer eq 'non_authorized') {
404: &logthis("User $uname at $udom rejected by local server");
405: return 'no_host';
406: }
1.2 www 407: }
1.1 albertel 408: }
409:
410: my $tryserver;
411: foreach $tryserver (keys %libserv) {
412: if ($hostdom{$tryserver} eq $udom) {
1.10 www 413: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$tryserver);
1.1 albertel 414: if ($answer =~ /authorized/) {
1.9 www 415: if ($answer eq 'authorized') {
416: &logthis("User $uname at $udom authorized by $tryserver");
417: return $tryserver;
418: }
419: if ($answer eq 'non_authorized') {
420: &logthis("User $uname at $udom rejected by $tryserver");
421: return 'no_host';
422: }
1.1 albertel 423: }
424: }
1.9 www 425: }
426: &logthis("User $uname at $udom could not be authenticated");
1.1 albertel 427: return 'no_host';
428: }
429:
430: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 431:
1.1 albertel 432: sub homeserver {
433: my ($uname,$udom)=@_;
434:
435: my $index="$uname:$udom";
436: if ($homecache{$index}) { return "$homecache{$index}"; }
437:
438: my $tryserver;
439: foreach $tryserver (keys %libserv) {
440: if ($hostdom{$tryserver} eq $udom) {
441: my $answer=reply("home:$udom:$uname",$tryserver);
442: if ($answer eq 'found') {
443: $homecache{$index}=$tryserver;
444: return $tryserver;
445: }
446: }
447: }
448: return 'no_host';
1.70 www 449: }
450:
451: # ------------------------------------- Find the usernames behind a list of IDs
452:
453: sub idget {
454: my ($udom,@ids)=@_;
455: my %returnhash=();
456:
457: my $tryserver;
458: foreach $tryserver (keys %libserv) {
459: if ($hostdom{$tryserver} eq $udom) {
460: my $idlist=join('&',@ids);
461: $idlist=~tr/A-Z/a-z/;
462: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
463: my @answer=();
1.76 www 464: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1.70 www 465: @answer=split(/\&/,$reply);
466: } ;
467: my $i;
468: for ($i=0;$i<=$#ids;$i++) {
469: if ($answer[$i]) {
470: $returnhash{$ids[$i]}=$answer[$i];
471: }
472: }
473: }
474: }
475: return %returnhash;
476: }
477:
478: # ------------------------------------- Find the IDs behind a list of usernames
479:
480: sub idrget {
481: my ($udom,@unames)=@_;
482: my %returnhash=();
483: map {
484: $returnhash{$_}=(&userenvironment($udom,$_,'id'))[1];
485: } @unames;
486: return %returnhash;
487: }
488:
489: # ------------------------------- Store away a list of names and associated IDs
490:
491: sub idput {
492: my ($udom,%ids)=@_;
493: my %servers=();
494: map {
495: my $uhom=&homeserver($_,$udom);
496: if ($uhom ne 'no_host') {
497: my $id=&escape($ids{$_});
498: $id=~tr/A-Z/a-z/;
499: my $unam=&escape($_);
500: if ($servers{$uhom}) {
501: $servers{$uhom}.='&'.$id.'='.$unam;
502: } else {
503: $servers{$uhom}=$id.'='.$unam;
504: }
505: &critical('put:'.$udom.':'.$unam.':environment:id='.$id,$uhom);
506: }
507: } keys %ids;
508: map {
509: &critical('idput:'.$udom.':'.$servers{$_},$_);
510: } keys %servers;
511: }
512:
513: # ------------------------------------- Find the section of student in a course
514:
515: sub usection {
516: my ($udom,$unam,$courseid)=@_;
517: $courseid=~s/\_/\//g;
518: $courseid=~s/^(\w)/\/$1/;
519: map {
520: my ($key,$value)=split(/\=/,$_);
521: $key=&unescape($key);
522: if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) {
523: my $section=$1;
524: if ($key eq $courseid.'_st') { $section=''; }
525: my ($dummy,$end,$start)=split(/\_/,&unescape($value));
526: my $now=time;
527: my $notactive=0;
528: if ($start) {
529: if ($now<$start) { $notactive=1; }
530: }
531: if ($end) {
532: if ($now>$end) { $notactive=1; }
533: }
534: unless ($notactive) { return $section; }
535: }
536: } split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles',
537: &homeserver($unam,$udom)));
538: return '-1';
539: }
540:
541: # ------------------------------------- Read an entry from a user's environment
542:
543: sub userenvironment {
544: my ($udom,$unam,@what)=@_;
545: my %returnhash=();
546: my @answer=split(/\&/,
547: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
548: &homeserver($unam,$udom)));
549: my $i;
550: for ($i=0;$i<=$#what;$i++) {
551: $returnhash{$what[$i]}=&unescape($answer[$i]);
552: }
553: return %returnhash;
1.1 albertel 554: }
555:
556: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 557:
1.1 albertel 558: sub subscribe {
559: my $fname=shift;
560: my $author=$fname;
561: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
562: my ($udom,$uname)=split(/\//,$author);
563: my $home=homeserver($uname,$udom);
564: if (($home eq 'no_host') || ($home eq $perlvar{'lonHostID'})) {
565: return 'not_found';
566: }
567: my $answer=reply("sub:$fname",$home);
1.64 www 568: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
569: $answer.=' by '.$home;
570: }
1.1 albertel 571: return $answer;
572: }
573:
1.8 www 574: # -------------------------------------------------------------- Replicate file
575:
576: sub repcopy {
577: my $filename=shift;
1.23 www 578: $filename=~s/\/+/\//g;
1.8 www 579: my $transname="$filename.in.transfer";
1.17 www 580: if ((-e $filename) || (-e $transname)) { return OK; }
1.8 www 581: my $remoteurl=subscribe($filename);
1.64 www 582: if ($remoteurl =~ /^con_lost by/) {
583: &logthis("Subscribe returned $remoteurl: $filename");
1.8 www 584: return HTTP_SERVICE_UNAVAILABLE;
585: } elsif ($remoteurl eq 'not_found') {
586: &logthis("Subscribe returned not_found: $filename");
587: return HTTP_NOT_FOUND;
1.64 www 588: } elsif ($remoteurl =~ /^rejected by/) {
589: &logthis("Subscribe returned $remoteurl: $filename");
1.8 www 590: return FORBIDDEN;
1.20 www 591: } elsif ($remoteurl eq 'directory') {
592: return OK;
1.8 www 593: } else {
594: my @parts=split(/\//,$filename);
595: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
596: if ($path ne "$perlvar{'lonDocRoot'}/res") {
597: &logthis("Malconfiguration for replication: $filename");
598: return HTTP_BAD_REQUEST;
599: }
600: my $count;
601: for ($count=5;$count<$#parts;$count++) {
602: $path.="/$parts[$count]";
603: if ((-e $path)!=1) {
604: mkdir($path,0777);
605: }
606: }
607: my $ua=new LWP::UserAgent;
608: my $request=new HTTP::Request('GET',"$remoteurl");
609: my $response=$ua->request($request,$transname);
610: if ($response->is_error()) {
611: unlink($transname);
612: my $message=$response->status_line;
1.12 www 613: &logthis("<font color=blue>WARNING:"
614: ." LWP get: $message: $filename</font>");
1.8 www 615: return HTTP_SERVICE_UNAVAILABLE;
616: } else {
1.16 www 617: if ($remoteurl!~/\.meta$/) {
618: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
619: my $mresponse=$ua->request($mrequest,$filename.'.meta');
620: if ($mresponse->is_error()) {
621: unlink($filename.'.meta');
622: &logthis(
623: "<font color=yellow>INFO: No metadata: $filename</font>");
624: }
625: }
1.8 www 626: rename($transname,$filename);
627: return OK;
628: }
629: }
630: }
631:
1.15 www 632: # --------------------------------------------------------- Server Side Include
633:
634: sub ssi {
635:
1.23 www 636: my ($fn,%form)=@_;
1.15 www 637:
638: my $ua=new LWP::UserAgent;
1.23 www 639:
640: my $request;
641:
642: if (%form) {
643: $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn);
644: $request->content(join '&', map { "$_=$form{$_}" } keys %form);
645: } else {
646: $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);
647: }
648:
1.15 www 649: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
650: my $response=$ua->request($request);
651:
652: return $response->content;
653: }
654:
1.14 www 655: # ------------------------------------------------------------------------- Log
656:
657: sub log {
658: my ($dom,$nam,$hom,$what)=@_;
1.47 www 659: return critical("log:$dom:$nam:$what",$hom);
1.149 ! www 660: }
! 661:
! 662: # ----------------------------------------------------------- Check out an item
! 663:
! 664:
! 665: sub checkout {
! 666: my ($symb,$tuname,$tudom,$tcrsid)=@_;
! 667: my $now=time;
! 668: my $lonhost=$perlvar{'lonHostID'};
! 669: my $infostr=&escape(
! 670: $tuname.'&'.
! 671: $tudom.'&'.
! 672: $tcrsid.'&'.
! 673: $symb.'&'.
! 674: $now.'&'.$ENV{'REMOTE_ADDR'});
! 675: my $token=&reply('tmpput:'.$infostr,$lonhost);
! 676: if ($token=~/^error\:/) { return ''; }
! 677: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
! 678: $token=~tr/a-z/A-Z/;
! 679:
! 680: my %infohash=('token' => $token,
! 681: 'checktime' => $now,
! 682: 'remote' => $ENV{'REMOTE_ADDR'});
! 683:
! 684: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
! 685: return '';
! 686: }
! 687:
! 688: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
! 689: &escape('Checkout '.$infostr.' - '.
! 690: $token)) ne 'ok') {
! 691: return '';
! 692: }
! 693: }
! 694:
! 695: # ------------------------------------------------------------ Check in an item
! 696:
! 697: sub checkin {
! 698: my $token=shift;
1.110 www 699: }
700:
701: # --------------------------------------------- Set Expire Date for Spreadsheet
702:
703: sub expirespread {
704: my ($uname,$udom,$stype,$usymb)=@_;
705: my $cid=$ENV{'request.course.id'};
706: if ($cid) {
707: my $now=time;
708: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
709: return &reply('put:'.$ENV{'course.'.$cid.'.domain'}.':'.
710: $ENV{'course.'.$cid.'.num'}.
711: ':nohist_expirationdates:'.
712: &escape($key).'='.$now,
713: $ENV{'course.'.$cid.'.home'})
714: }
715: return 'ok';
1.14 www 716: }
717:
1.109 www 718: # ----------------------------------------------------- Devalidate Spreadsheets
719:
720: sub devalidate {
721: my $symb=shift;
722: my $cid=$ENV{'request.course.id'};
723: if ($cid) {
724: my $key=$ENV{'user.name'}.':'.$ENV{'user.domain'}.':';
725: my $status=
1.133 albertel 726: &del('nohist_calculatedsheet',
727: [$key.'studentcalc'],
728: $ENV{'course.'.$cid.'.domain'},
729: $ENV{'course.'.$cid.'.num'})
730: .' '.
731: &del('nohist_calculatedsheets_'.$cid,
732: [$key.'assesscalc:'.$symb]);
1.109 www 733: unless ($status eq 'ok ok') {
734: &logthis('Could not devalidate spreadsheet '.
735: $ENV{'user.name'}.' at '.$ENV{'user.domain'}.' for '.
736: $symb.': '.$status);
1.133 albertel 737: }
1.109 www 738: }
739: }
740:
1.9 www 741: # ----------------------------------------------------------------------- Store
742:
743: sub store {
1.124 www 744: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
745: my $home='';
746:
747: if ($stuname) {
748: $home=&homeserver($stuname,$domain);
749: }
750:
1.122 albertel 751: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 752:
753: &devalidate($symb);
754:
755: $symb=escape($symb);
1.122 albertel 756: if (!$namespace) { unless ($namespace=$ENV{'request.course.id'}) { return ''; } }
757: if (!$domain) { $domain=$ENV{'user.domain'}; }
758: if (!$stuname) { $stuname=$ENV{'user.name'}; }
759: if (!$home) { $home=$ENV{'user.home'}; }
1.12 www 760: my $namevalue='';
761: map {
1.122 albertel 762: $namevalue.=escape($_).'='.escape($$storehash{$_}).'&';
763: } keys %$storehash;
1.12 www 764: $namevalue=~s/\&$//;
1.124 www 765: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 766: }
767:
1.47 www 768: # -------------------------------------------------------------- Critical Store
769:
770: sub cstore {
1.124 www 771: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
772: my $home='';
773:
774: if ($stuname) {
775: $home=&homeserver($stuname,$domain);
776: }
777:
1.122 albertel 778: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 779:
780: &devalidate($symb);
781:
782: $symb=escape($symb);
1.122 albertel 783: if (!$namespace) { unless ($namespace=$ENV{'request.course.id'}) { return ''; } }
784: if (!$domain) { $domain=$ENV{'user.domain'}; }
785: if (!$stuname) { $stuname=$ENV{'user.name'}; }
786: if (!$home) { $home=$ENV{'user.home'}; }
787:
1.47 www 788: my $namevalue='';
789: map {
1.122 albertel 790: $namevalue.=escape($_).'='.escape($$storehash{$_}).'&';
791: } keys %$storehash;
1.47 www 792: $namevalue=~s/\&$//;
1.122 albertel 793: return critical("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 794: }
795:
1.9 www 796: # --------------------------------------------------------------------- Restore
797:
798: sub restore {
1.124 www 799: my ($symb,$namespace,$domain,$stuname) = @_;
800: my $home='';
801:
802: if ($stuname) {
803: $home=&homeserver($stuname,$domain);
804: }
805:
1.122 albertel 806: if (!$symb) {
807: unless ($symb=escape(&symbread())) { return ''; }
808: } else {
809: $symb=&escape($symb);
810: }
811: if (!$namespace) { unless ($namespace=$ENV{'request.course.id'}) { return ''; } }
812: if (!$domain) { $domain=$ENV{'user.domain'}; }
813: if (!$stuname) { $stuname=$ENV{'user.name'}; }
814: if (!$home) { $home=$ENV{'user.home'}; }
815: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
816:
1.12 www 817: my %returnhash=();
818: map {
819: my ($name,$value)=split(/\=/,$_);
820: $returnhash{&unescape($name)}=&unescape($value);
821: } split(/\&/,$answer);
1.75 www 822: my $version;
823: for ($version=1;$version<=$returnhash{'version'};$version++) {
824: map {
825: $returnhash{$_}=$returnhash{$version.':'.$_};
826: } split(/\:/,$returnhash{$version.':keys'});
827: }
1.13 www 828: return %returnhash;
1.34 www 829: }
830:
831: # ---------------------------------------------------------- Course Description
832:
833: sub coursedescription {
834: my $courseid=shift;
835: $courseid=~s/^\///;
1.49 www 836: $courseid=~s/\_/\//g;
1.34 www 837: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 838: my $chome=&homeserver($cnum,$cdomain);
1.34 www 839: if ($chome ne 'no_host') {
1.129 albertel 840: my %returnhash=&dump('environment',$cdomain,$cnum);
841: if (!exists($returnhash{'con_lost'})) {
1.96 www 842: my $normalid=$cdomain.'_'.$cnum;
1.53 www 843: my %envhash=();
1.129 albertel 844: $returnhash{'home'}= $chome;
845: $returnhash{'domain'} = $cdomain;
846: $returnhash{'num'} = $cnum;
1.130 albertel 847: while (my ($name,$value) = each %returnhash) {
1.53 www 848: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 849: }
1.34 www 850: $returnhash{'url'}='/res/'.declutter($returnhash{'url'});
851: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.38 www 852: $ENV{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.54 www 853: $envhash{'course.'.$normalid.'.last_cache'}=time;
1.60 www 854: $envhash{'course.'.$normalid.'.home'}=$chome;
855: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
856: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.53 www 857: &appenv(%envhash);
1.34 www 858: return %returnhash;
859: }
860: }
861: return ();
1.9 www 862: }
1.1 albertel 863:
1.103 harris41 864: # -------------------------------------------------------- Get user privileges
1.11 www 865:
866: sub rolesinit {
867: my ($domain,$username,$authhost)=@_;
868: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 869: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 870: my %allroles=();
871: my %thesepriv=();
872: my $now=time;
1.21 www 873: my $userroles="user.login.time=$now\n";
1.11 www 874: my $thesestr;
875:
876: if ($rolesdump ne '') {
877: map {
1.21 www 878: if ($_!~/^rolesdef\&/) {
1.11 www 879: my ($area,$role)=split(/=/,$_);
1.21 www 880: $area=~s/\_\w\w$//;
1.11 www 881: my ($trole,$tend,$tstart)=split(/_/,$role);
1.21 www 882: $userroles.='user.role.'.$trole.'.'.$area.'='.
883: $tstart.'.'.$tend."\n";
1.11 www 884: if ($tend!=0) {
885: if ($tend<$now) {
886: $trole='';
887: }
888: }
889: if ($tstart!=0) {
890: if ($tstart>$now) {
891: $trole='';
892: }
893: }
894: if (($area ne '') && ($trole ne '')) {
1.50 www 895: my $spec=$trole.'.'.$area;
1.12 www 896: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
897: if ($trole =~ /^cr\//) {
898: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
899: my $homsvr=homeserver($rauthor,$rdomain);
900: if ($hostname{$homsvr} ne '') {
901: my $roledef=
1.21 www 902: reply("get:$rdomain:$rauthor:roles:rolesdef_$rrole",
1.12 www 903: $homsvr);
904: if (($roledef ne 'con_lost') && ($roledef ne '')) {
905: my ($syspriv,$dompriv,$coursepriv)=
1.21 www 906: split(/\_/,unescape($roledef));
1.50 www 907: $allroles{'cm./'}.=':'.$syspriv;
908: $allroles{$spec.'./'}.=':'.$syspriv;
1.12 www 909: if ($tdomain ne '') {
1.50 www 910: $allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
911: $allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
1.12 www 912: if ($trest ne '') {
1.50 www 913: $allroles{'cm.'.$area}.=':'.$coursepriv;
914: $allroles{$spec.'.'.$area}.=':'.$coursepriv;
1.12 www 915: }
916: }
917: }
1.11 www 918: }
1.12 www 919: } else {
1.50 www 920: $allroles{'cm./'}.=':'.$pr{$trole.':s'};
921: $allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
1.12 www 922: if ($tdomain ne '') {
1.50 www 923: $allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
924: $allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
1.12 www 925: if ($trest ne '') {
1.50 www 926: $allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
927: $allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
1.12 www 928: }
929: }
1.11 www 930: }
1.12 www 931: }
932: }
1.11 www 933: } split(/&/,$rolesdump);
1.125 www 934: my $adv=0;
1.128 www 935: my $author=0;
1.11 www 936: map {
937: %thesepriv=();
1.146 www 938: if (($_!~/^st/) && ($_!~/^ta/) && ($_!~/^cm/)) { $adv=1; }
1.128 www 939: if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
1.11 www 940: map {
941: if ($_ ne '') {
1.103 harris41 942: my ($privilege,$restrictions)=split(/&/,$_);
1.11 www 943: if ($restrictions eq '') {
1.103 harris41 944: $thesepriv{$privilege}='F';
1.11 www 945: } else {
1.103 harris41 946: if ($thesepriv{$privilege} ne 'F') {
947: $thesepriv{$privilege}.=$restrictions;
1.11 www 948: }
949: }
950: }
951: } split(/:/,$allroles{$_});
952: $thesestr='';
953: map { $thesestr.=':'.$_.'&'.$thesepriv{$_}; } keys %thesepriv;
954: $userroles.='user.priv.'.$_.'='.$thesestr."\n";
955: } keys %allroles;
1.128 www 956: $userroles.='user.adv='.$adv."\n".
957: 'user.author='.$author."\n";
1.126 www 958: $ENV{'user.adv'}=$adv;
1.11 www 959: }
960: return $userroles;
961: }
962:
1.12 www 963: # --------------------------------------------------------------- get interface
964:
965: sub get {
1.131 albertel 966: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 967: my $items='';
968: map {
969: $items.=escape($_).'&';
1.131 albertel 970: } @$storearr;
1.12 www 971: $items=~s/\&$//;
1.131 albertel 972: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
973: if (!$uname) { $uname=$ENV{'user.name'}; }
974: my $uhome=&homeserver($uname,$udomain);
975:
1.133 albertel 976: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 977: my @pairs=split(/\&/,$rep);
978: my %returnhash=();
1.42 www 979: my $i=0;
1.15 www 980: map {
1.42 www 981: $returnhash{$_}=unescape($pairs[$i]);
982: $i++;
1.131 albertel 983: } @$storearr;
1.15 www 984: return %returnhash;
1.27 www 985: }
986:
987: # --------------------------------------------------------------- del interface
988:
989: sub del {
1.133 albertel 990: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 991: my $items='';
992: map {
993: $items.=escape($_).'&';
1.133 albertel 994: } @$storearr;
1.27 www 995: $items=~s/\&$//;
1.133 albertel 996: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
997: if (!$uname) { $uname=$ENV{'user.name'}; }
998: my $uhome=&homeserver($uname,$udomain);
999:
1000: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 1001: }
1002:
1003: # -------------------------------------------------------------- dump interface
1004:
1005: sub dump {
1.129 albertel 1006: my ($namespace,$udomain,$uname)=@_;
1007: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1008: if (!$uname) { $uname=$ENV{'user.name'}; }
1009: my $uhome=&homeserver($uname,$udomain);
1010: my $rep=reply("dump:$udomain:$uname:$namespace",$uhome);
1.12 www 1011: my @pairs=split(/\&/,$rep);
1012: my %returnhash=();
1013: map {
1014: my ($key,$value)=split(/=/,$_);
1.29 www 1015: $returnhash{unescape($key)}=unescape($value);
1.12 www 1016: } @pairs;
1017: return %returnhash;
1018: }
1019:
1020: # --------------------------------------------------------------- put interface
1021:
1022: sub put {
1.134 albertel 1023: my ($namespace,$storehash,$udomain,$uname)=@_;
1024: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1025: if (!$uname) { $uname=$ENV{'user.name'}; }
1026: my $uhome=&homeserver($uname,$udomain);
1.12 www 1027: my $items='';
1028: map {
1.134 albertel 1029: $items.=&escape($_).'='.&escape($$storehash{$_}).'&';
1030: } keys %$storehash;
1.12 www 1031: $items=~s/\&$//;
1.134 albertel 1032: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 1033: }
1034:
1035: # ------------------------------------------------------ critical put interface
1036:
1037: sub cput {
1.134 albertel 1038: my ($namespace,$storehash,$udomain,$uname)=@_;
1039: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1040: if (!$uname) { $uname=$ENV{'user.name'}; }
1041: my $uhome=&homeserver($uname,$udomain);
1.47 www 1042: my $items='';
1043: map {
1.134 albertel 1044: $items.=escape($_).'='.escape($$storehash{$_}).'&';
1045: } keys %$storehash;
1.47 www 1046: $items=~s/\&$//;
1.134 albertel 1047: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 1048: }
1049:
1050: # -------------------------------------------------------------- eget interface
1051:
1052: sub eget {
1.133 albertel 1053: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 1054: my $items='';
1055: map {
1056: $items.=escape($_).'&';
1.133 albertel 1057: } @$storearr;
1.12 www 1058: $items=~s/\&$//;
1.133 albertel 1059: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1060: if (!$uname) { $uname=$ENV{'user.name'}; }
1061: my $uhome=&homeserver($uname,$udomain);
1062: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 1063: my @pairs=split(/\&/,$rep);
1064: my %returnhash=();
1.42 www 1065: my $i=0;
1.12 www 1066: map {
1.42 www 1067: $returnhash{$_}=unescape($pairs[$i]);
1068: $i++;
1.133 albertel 1069: } @$storearr;
1.12 www 1070: return %returnhash;
1071: }
1072:
1.103 harris41 1073: # ------------------------------------------------- Check for a user privilege
1.12 www 1074:
1075: sub allowed {
1076: my ($priv,$uri)=@_;
1.52 www 1077: $uri=&declutter($uri);
1.29 www 1078:
1.54 www 1079: # Free bre access to adm and meta resources
1.29 www 1080:
1.54 www 1081: if ((($uri=~/^adm\//) || ($uri=~/\.meta$/)) && ($priv eq 'bre')) {
1.14 www 1082: return 'F';
1083: }
1.29 www 1084:
1.52 www 1085: my $thisallowed='';
1086: my $statecond=0;
1087: my $courseprivid='';
1088:
1089: # Course
1090:
1091: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'}=~/$priv\&([^\:]*)/) {
1092: $thisallowed.=$1;
1093: }
1.29 www 1094:
1.52 www 1095: # Domain
1096:
1097: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1098: =~/$priv\&([^\:]*)/) {
1.12 www 1099: $thisallowed.=$1;
1100: }
1.52 www 1101:
1102: # Course: uri itself is a course
1.66 www 1103: my $courseuri=$uri;
1104: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 1105: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 1106:
1.83 www 1107: if ($ENV{'user.priv.'.$ENV{'request.role'}.'.'.$courseuri}
1.52 www 1108: =~/$priv\&([^\:]*)/) {
1.12 www 1109: $thisallowed.=$1;
1110: }
1.29 www 1111:
1.52 www 1112: # Full access at system, domain or course-wide level? Exit.
1.29 www 1113:
1114: if ($thisallowed=~/F/) {
1115: return 'F';
1116: }
1117:
1.52 www 1118: # If this is generating or modifying users, exit with special codes
1.29 www 1119:
1.52 www 1120: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:'=~/\:$priv\:/) {
1121: return $thisallowed;
1122: }
1123: #
1.103 harris41 1124: # Gathered so far: system, domain and course wide privileges
1.52 www 1125: #
1126: # Course: See if uri or referer is an individual resource that is part of
1127: # the course
1128:
1129: if ($ENV{'request.course.id'}) {
1130: $courseprivid=$ENV{'request.course.id'};
1131: if ($ENV{'request.course.sec'}) {
1132: $courseprivid.='/'.$ENV{'request.course.sec'};
1133: }
1134: $courseprivid=~s/\_/\//;
1135: my $checkreferer=1;
1136: my @uriparts=split(/\//,$uri);
1137: my $filename=$uriparts[$#uriparts];
1138: my $pathname=$uri;
1139: $pathname=~s/\/$filename$//;
1140: if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~
1.54 www 1141: /\&$filename\:([\d\|]+)\&/) {
1.52 www 1142: $statecond=$1;
1143: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid}
1144: =~/$priv\&([^\:]*)/) {
1145: $thisallowed.=$1;
1146: $checkreferer=0;
1147: }
1.29 www 1148: }
1.83 www 1149:
1.148 www 1150: if ($checkreferer) {
1151: my $refuri=$ENV{'httpref.'.$uri};
1152:
1153: unless ($refuri) {
1154: map {
1155: if ($_=~/^httpref\..*\*/) {
1156: my $pattern=$_;
1157: $pattern=~s/\*/\[\^\/\]\+/g;
1158: $pattern=~s/\//\\\//g;
1159: if ($uri=~/$pattern/) {
1160: $refuri=$ENV{$_};
1161: }
1162: }
1163: } keys %ENV;
1164: }
1165: if ($refuri) {
1.53 www 1166: my @uriparts=split(/\//,$refuri);
1.52 www 1167: my $filename=$uriparts[$#uriparts];
1.53 www 1168: my $pathname=$refuri;
1.52 www 1169: $pathname=~s/\/$filename$//;
1.55 www 1170: my @filenameparts=split(/\./,$uri);
1.53 www 1171: if (&fileembstyle($filenameparts[$#filenameparts]) ne 'ssi') {
1172: if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~
1.54 www 1173: /\&$filename\:([\d\|]+)\&/) {
1.53 www 1174: my $refstatecond=$1;
1.52 www 1175: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid}
1176: =~/$priv\&([^\:]*)/) {
1177: $thisallowed.=$1;
1.53 www 1178: $uri=$refuri;
1179: $statecond=$refstatecond;
1.52 www 1180: }
1.53 www 1181: }
1.52 www 1182: }
1.148 www 1183: }
1.29 www 1184: }
1.52 www 1185: }
1.29 www 1186:
1.52 www 1187: #
1.103 harris41 1188: # Gathered now: all privileges that could apply, and condition number
1.52 www 1189: #
1190: #
1191: # Full or no access?
1192: #
1.29 www 1193:
1.52 www 1194: if ($thisallowed=~/F/) {
1195: return 'F';
1196: }
1.29 www 1197:
1.52 www 1198: unless ($thisallowed) {
1199: return '';
1200: }
1.29 www 1201:
1.52 www 1202: # Restrictions exist, deal with them
1203: #
1204: # C:according to course preferences
1205: # R:according to resource settings
1206: # L:unless locked
1207: # X:according to user session state
1208: #
1209:
1210: # Possibly locked functionality, check all courses
1.54 www 1211: # Locks might take effect only after 10 minutes cache expiration for other
1212: # courses, and 2 minutes for current course
1.52 www 1213:
1214: my $envkey;
1215: if ($thisallowed=~/L/) {
1216: foreach $envkey (keys %ENV) {
1.54 www 1217: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
1218: my $courseid=$2;
1219: my $roleid=$1.'.'.$2;
1.92 www 1220: $courseid=~s/^\///;
1.54 www 1221: my $expiretime=600;
1222: if ($ENV{'request.role'} eq $roleid) {
1223: $expiretime=120;
1224: }
1225: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
1226: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1227: if ((time-$ENV{$prefix.'last_cache'})>$expiretime) {
1228: &coursedescription($courseid);
1229: }
1230: if (($ENV{$prefix.'res.'.$uri.'.lock.sections'}=~/\,$csec\,/)
1231: || ($ENV{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
1232: if ($ENV{$prefix.'res.'.$uri.'.lock.expire'}>time) {
1.57 www 1233: &log($ENV{'user.domain'},$ENV{'user.name'},
1234: $ENV{'user.host'},
1235: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 1236: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.54 www 1237: $ENV{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 1238: return '';
1239: }
1240: }
1.54 www 1241: if (($ENV{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,$csec\,/)
1242: || ($ENV{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
1243: if ($ENV{'priv.'.$priv.'.lock.expire'}>time) {
1.57 www 1244: &log($ENV{'user.domain'},$ENV{'user.name'},
1245: $ENV{'user.host'},
1246: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 1247: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.54 www 1248: $ENV{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 1249: return '';
1250: }
1251: }
1252: }
1.29 www 1253: }
1.52 www 1254: }
1255:
1256: #
1257: # Rest of the restrictions depend on selected course
1258: #
1259:
1260: unless ($ENV{'request.course.id'}) {
1261: return '1';
1262: }
1.29 www 1263:
1.52 www 1264: #
1265: # Now user is definitely in a course
1266: #
1.53 www 1267:
1268:
1269: # Course preferences
1270:
1271: if ($thisallowed=~/C/) {
1.54 www 1272: my $rolecode=(split(/\./,$ENV{'request.role'}))[0];
1273: if ($ENV{'course.'.$ENV{'request.course.id'}.'.'.$priv.'.roles.denied'}
1274: =~/\,$rolecode\,/) {
1.57 www 1275: &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'},
1276: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
1.54 www 1277: $ENV{'request.course.id'});
1278: return '';
1279: }
1.53 www 1280: }
1281:
1282: # Resource preferences
1283:
1284: if ($thisallowed=~/R/) {
1.54 www 1285: my $rolecode=(split(/\./,$ENV{'request.role'}))[0];
1286: my $filename=$perlvar{'lonDocRoot'}.'/res/'.$uri.'.meta';
1287: if (-e $filename) {
1288: my @content;
1289: {
1290: my $fh=Apache::File->new($filename);
1291: @content=<$fh>;
1292: }
1293: if (join('',@content)=~
1294: /\<roledeny[^\>]*\>[^\<]*$rolecode[^\<]*\<\/roledeny\>/) {
1.57 www 1295: &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'},
1296: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
1.54 www 1297: return '';
1298:
1299: }
1300: }
1.53 www 1301: }
1.30 www 1302:
1.52 www 1303: # Restricted by state?
1.30 www 1304:
1.52 www 1305: if ($thisallowed=~/X/) {
1306: if (&condval($statecond)) {
1307: return '2';
1308: } else {
1309: return '';
1310: }
1311: }
1.30 www 1312:
1.52 www 1313: return 'F';
1.12 www 1314: }
1315:
1316: # ----------------------------------------------------------------- Define Role
1317:
1318: sub definerole {
1319: if (allowed('mcr','/')) {
1320: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.21 www 1321: map {
1322: my ($crole,$cqual)=split(/\&/,$_);
1323: if ($pr{'cr:s'}!~/$crole/) { return "refused:s:$crole"; }
1324: if ($pr{'cr:s'}=~/$crole\&/) {
1325: if ($pr{'cr:s'}!~/$crole\&\w*$cqual/) {
1326: return "refused:s:$crole&$cqual";
1327: }
1328: }
1329: } split('/',$sysrole);
1330: map {
1331: my ($crole,$cqual)=split(/\&/,$_);
1332: if ($pr{'cr:d'}!~/$crole/) { return "refused:d:$crole"; }
1333: if ($pr{'cr:d'}=~/$crole\&/) {
1334: if ($pr{'cr:d'}!~/$crole\&\w*$cqual/) {
1335: return "refused:d:$crole&$cqual";
1336: }
1337: }
1338: } split('/',$domrole);
1339: map {
1340: my ($crole,$cqual)=split(/\&/,$_);
1341: if ($pr{'cr:c'}!~/$crole/) { return "refused:c:$crole"; }
1342: if ($pr{'cr:c'}=~/$crole\&/) {
1343: if ($pr{'cr:c'}!~/$crole\&\w*$cqual/) {
1344: return "refused:c:$crole&$cqual";
1345: }
1346: }
1347: } split('/',$courole);
1.12 www 1348: my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:".
1349: "$ENV{'user.domain'}:$ENV{'user.name'}:".
1.21 www 1350: "rolesdef_$rolename=".
1351: escape($sysrole.'_'.$domrole.'_'.$courole);
1.12 www 1352: return reply($command,$ENV{'user.home'});
1353: } else {
1354: return 'refused';
1355: }
1.105 harris41 1356: }
1357:
1358: # ---------------- Make a metadata query against the network of library servers
1359:
1360: sub metadata_query {
1.116 harris41 1361: my ($query,$custom,$customshow)=@_;
1.118 harris41 1362: # need to put in a library server loop here and return a hash
1.120 harris41 1363: my %rhash;
1.123 harris41 1364: for my $server (keys %libserv) {
1.118 harris41 1365: unless ($custom or $customshow) {
1366: my $reply=&reply("querysend:".&escape($query),$server);
1367: $rhash{$server}=$reply;
1368: }
1369: else {
1370: my $reply=&reply("querysend:".&escape($query).':'.
1371: &escape($custom).':'.&escape($customshow),
1372: $server);
1373: $rhash{$server}=$reply;
1374: }
1.112 harris41 1375: }
1.118 harris41 1376: return \%rhash;
1.12 www 1377: }
1378:
1379: # ------------------------------------------------------------------ Plain Text
1380:
1381: sub plaintext {
1.22 www 1382: my $short=shift;
1383: return $prp{$short};
1.12 www 1384: }
1385:
1.25 www 1386: # ------------------------------------------------------------------ Plain Text
1387:
1388: sub fileembstyle {
1389: my $ending=shift;
1390: return $fe{$ending};
1391: }
1392:
1393: # ------------------------------------------------------------ Description Text
1394:
1.74 www 1395: sub filedescription {
1.25 www 1396: my $ending=shift;
1397: return $fd{$ending};
1398: }
1399:
1.12 www 1400: # ----------------------------------------------------------------- Assign Role
1401:
1402: sub assignrole {
1.21 www 1403: my ($udom,$uname,$url,$role,$end,$start)=@_;
1404: my $mrole;
1405: if ($role =~ /^cr\//) {
1.104 www 1406: unless (&allowed('ccr',$url)) {
1407: &logthis('Refused custom assignrole: '.
1408: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1409: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1410: return 'refused';
1411: }
1.21 www 1412: $mrole='cr';
1413: } else {
1.82 www 1414: my $cwosec=$url;
1.83 www 1415: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
1.104 www 1416: unless (&allowed('c'.$role,$cwosec)) {
1417: &logthis('Refused assignrole: '.
1418: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1419: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1420: return 'refused';
1421: }
1.21 www 1422: $mrole=$role;
1423: }
1424: my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:".
1425: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 1426: if ($end) { $command.='_'.$end; }
1.21 www 1427: if ($start) {
1428: if ($end) {
1.81 www 1429: $command.='_'.$start;
1.21 www 1430: } else {
1.81 www 1431: $command.='_0_'.$start;
1.21 www 1432: }
1433: }
1434: return &reply($command,&homeserver($uname,$udom));
1.80 www 1435: }
1436:
1.81 www 1437: # --------------------------------------------------------------- Modify a user
1.80 www 1438:
1439:
1.81 www 1440: sub modifyuser {
1.80 www 1441: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene)=@_;
1.81 www 1442: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 1443: $umode.', '.$first.', '.$middle.', '.
1444: $last.', '.$gene.' by '.
1445: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1446: my $uhome=&homeserver($uname,$udom);
1447: # ----------------------------------------------------------------- Create User
1.81 www 1448: if (($uhome eq 'no_host') && ($umode) && ($upass)) {
1.80 www 1449: my $unhome='';
1450: if ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'} eq $udom) {
1451: $unhome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1452: } else {
1453: my $tryserver;
1.81 www 1454: my $loadm=10000000;
1.80 www 1455: foreach $tryserver (keys %libserv) {
1456: if ($hostdom{$tryserver} eq $udom) {
1457: my $answer=reply('load',$tryserver);
1458: if (($answer=~/\d+/) && ($answer<$loadm)) {
1459: $loadm=$answer;
1460: $unhome=$tryserver;
1461: }
1462: }
1463: }
1464: }
1465: if (($unhome eq '') || ($unhome eq 'no_host')) {
1466: return 'error: find home';
1467: }
1468: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
1469: &escape($upass),$unhome);
1470: unless ($reply eq 'ok') {
1471: return 'error: '.$reply;
1472: }
1473: $uhome=&homeserver($uname,$udom);
1474: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1475: return 'error: verify home';
1476: }
1477: }
1478: # ---------------------------------------------------------------------- Add ID
1479: if ($uid) {
1480: $uid=~tr/A-Z/a-z/;
1481: my %uidhash=&idrget($udom,$uname);
1482: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)) {
1483: unless ($uid eq $uidhash{$uname}) {
1484: return 'error: mismatch '.$uidhash{$uname}.' versus '.$uid;
1485: }
1486: } else {
1487: &idput($udom,($uname => $uid));
1488: }
1489: }
1490: # -------------------------------------------------------------- Add names, etc
1.134 albertel 1491: my %names=&get('environment',
1492: ['firstname','middlename','lastname','generation'],
1493: $udom,$uname);
1494: if ($first) { $names{'firstname'} = $first; }
1495: if ($middle) { $names{'middlename'} = $middle; }
1496: if ($last) { $names{'lastname'} = $last; }
1497: if ($gene) { $names{'generation'} = $gene; }
1498: my $reply = &put('environment', \%names, $udom,$uname);
1499: if ($reply ne 'ok') { return 'error: '.$reply; }
1.81 www 1500: &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 1501: $umode.', '.$first.', '.$middle.', '.
1502: $last.', '.$gene.' by '.
1503: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1.134 albertel 1504: return 'ok';
1.80 www 1505: }
1506:
1.81 www 1507: # -------------------------------------------------------------- Modify student
1.80 www 1508:
1.81 www 1509: sub modifystudent {
1510: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1511: $end,$start)=@_;
1512: my $cid='';
1513: unless ($cid=$ENV{'request.course.id'}) {
1.80 www 1514: return 'not_in_class';
1515: }
1516: # --------------------------------------------------------------- Make the user
1.81 www 1517: my $reply=&modifyuser
1.80 www 1518: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene);
1519: unless ($reply eq 'ok') { return $reply; }
1.81 www 1520: my $uhome=&homeserver($uname,$udom);
1521: if (($uhome eq '') || ($uhome eq 'no_host')) {
1522: return 'error: no such user';
1523: }
1.80 www 1524: # -------------------------------------------------- Add student to course list
1.81 www 1525: my $reply=critical('put:'.$ENV{'course.'.$cid.'.domain'}.':'.
1526: $ENV{'course.'.$cid.'.num'}.':classlist:'.
1527: &escape($uname.':'.$udom).'='.
1528: &escape($end.':'.$start),
1529: $ENV{'course.'.$cid.'.home'});
1530: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
1531: return 'error: '.$reply;
1532: }
1.80 www 1533: # ---------------------------------------------------- Add student role to user
1.83 www 1534: my $uurl='/'.$cid;
1.81 www 1535: $uurl=~s/\_/\//g;
1536: if ($usec) {
1537: $uurl.='/'.$usec;
1538: }
1539: return &assignrole($udom,$uname,$uurl,'st',$end,$start);
1.21 www 1540: }
1541:
1.84 www 1542: # ------------------------------------------------- Write to course preferences
1543:
1544: sub writecoursepref {
1545: my ($courseid,%prefs)=@_;
1546: $courseid=~s/^\///;
1547: $courseid=~s/\_/\//g;
1548: my ($cdomain,$cnum)=split(/\//,$courseid);
1549: my $chome=homeserver($cnum,$cdomain);
1550: if (($chome eq '') || ($chome eq 'no_host')) {
1551: return 'error: no such course';
1552: }
1553: my $cstring='';
1554: map {
1555: $cstring.=escape($_).'='.escape($prefs{$_}).'&';
1556: } keys %prefs;
1557: $cstring=~s/\&$//;
1558: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
1559: }
1560:
1561: # ---------------------------------------------------------- Make/modify course
1562:
1563: sub createcourse {
1564: my ($udom,$description,$url)=@_;
1565: $url=&declutter($url);
1566: my $cid='';
1567: unless (&allowed('ccc',$ENV{'user.domain'})) {
1568: return 'refused';
1569: }
1570: unless ($udom eq $ENV{'user.domain'}) {
1571: return 'refused';
1572: }
1573: # ------------------------------------------------------------------- Create ID
1574: my $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
1575: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1576: # ----------------------------------------------- Make sure that does not exist
1577: my $uhome=&homeserver($uname,$udom);
1578: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1579: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
1580: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1581: $uhome=&homeserver($uname,$udom);
1582: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1583: return 'error: unable to generate unique course-ID';
1584: }
1585: }
1586: # ------------------------------------------------------------- Make the course
1587: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1588: $ENV{'user.home'});
1589: unless ($reply eq 'ok') { return 'error: '.$reply; }
1590: my $uhome=&homeserver($uname,$udom);
1591: if (($uhome eq '') || ($uhome eq 'no_host')) {
1592: return 'error: no such course';
1593: }
1594: &writecoursepref($udom.'_'.$uname,
1595: ('description' => $description,
1596: 'url' => $url));
1597: return '/'.$udom.'/'.$uname;
1598: }
1599:
1.21 www 1600: # ---------------------------------------------------------- Assign Custom Role
1601:
1602: sub assigncustomrole {
1603: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start)=@_;
1604: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1605: $end,$start);
1606: }
1607:
1608: # ----------------------------------------------------------------- Revoke Role
1609:
1610: sub revokerole {
1611: my ($udom,$uname,$url,$role)=@_;
1612: my $now=time;
1613: return &assignrole($udom,$uname,$url,$role,$now);
1614: }
1615:
1616: # ---------------------------------------------------------- Revoke Custom Role
1617:
1618: sub revokecustomrole {
1619: my ($udom,$uname,$url,$rdom,$rnam,$rolename)=@_;
1620: my $now=time;
1621: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now);
1.17 www 1622: }
1623:
1624: # ------------------------------------------------------------ Directory lister
1625:
1626: sub dirlist {
1627: my $uri=shift;
1.18 www 1628: $uri=~s/^\///;
1629: $uri=~s/\/$//;
1.19 www 1630: my ($res,$udom,$uname,@rest)=split(/\//,$uri);
1631: if ($udom) {
1632: if ($uname) {
1633: my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/'.$uri,
1634: homeserver($uname,$udom));
1635: return split(/:/,$listing);
1636: } else {
1637: my $tryserver;
1638: my %allusers=();
1639: foreach $tryserver (keys %libserv) {
1640: if ($hostdom{$tryserver} eq $udom) {
1641: my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.$udom,
1642: $tryserver);
1643: if (($listing ne 'no_such_dir') && ($listing ne 'empty')
1644: && ($listing ne 'con_lost')) {
1645: map {
1646: my ($entry,@stat)=split(/&/,$_);
1647: $allusers{$entry}=1;
1648: } split(/:/,$listing);
1649: }
1650: }
1651: }
1652: my $alluserstr='';
1653: map {
1654: $alluserstr.=$_.'&user:';
1655: } sort keys %allusers;
1656: $alluserstr=~s/:$//;
1657: return split(/:/,$alluserstr);
1658: }
1659: } else {
1660: my $tryserver;
1661: my %alldom=();
1662: foreach $tryserver (keys %libserv) {
1663: $alldom{$hostdom{$tryserver}}=1;
1664: }
1665: my $alldomstr='';
1666: map {
1667: $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'&domain:';
1668: } sort keys %alldom;
1669: $alldomstr=~s/:$//;
1670: return split(/:/,$alldomstr);
1671: }
1.26 www 1672: }
1673:
1674: # -------------------------------------------------------- Value of a Condition
1675:
1.40 www 1676: sub directcondval {
1677: my $number=shift;
1678: if ($ENV{'user.state.'.$ENV{'request.course.id'}}) {
1679: return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1);
1680: } else {
1681: return 2;
1682: }
1683: }
1684:
1.26 www 1685: sub condval {
1686: my $condidx=shift;
1687: my $result=0;
1.54 www 1688: my $allpathcond='';
1689: map {
1690: if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_})) {
1691: $allpathcond.=
1692: '('.$ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_}.')|';
1693: }
1694: } split(/\|/,$condidx);
1695: $allpathcond=~s/\|$//;
1.33 www 1696: if ($ENV{'request.course.id'}) {
1.54 www 1697: if ($allpathcond) {
1.26 www 1698: my $operand='|';
1699: my @stack;
1700: map {
1701: if ($_ eq '(') {
1702: push @stack,($operand,$result)
1703: } elsif ($_ eq ')') {
1704: my $before=pop @stack;
1705: if (pop @stack eq '&') {
1706: $result=$result>$before?$before:$result;
1707: } else {
1708: $result=$result>$before?$result:$before;
1709: }
1710: } elsif (($_ eq '&') || ($_ eq '|')) {
1711: $operand=$_;
1712: } else {
1.40 www 1713: my $new=directcondval($_);
1.26 www 1714: if ($operand eq '&') {
1715: $result=$result>$new?$new:$result;
1716: } else {
1717: $result=$result>$new?$result:$new;
1718: }
1719: }
1.54 www 1720: } ($allpathcond=~/(\d+|\(|\)|\&|\|)/g);
1.26 www 1721: }
1722: }
1723: return $result;
1.28 www 1724: }
1725:
1726: # --------------------------------------------------------- Value of a Variable
1727:
1.58 www 1728: sub EXT {
1.147 www 1729: my ($varname,$symbparm)=@_;
1.68 www 1730: unless ($varname) { return ''; }
1.48 www 1731: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
1732: my $rest;
1733: if ($therest[0]) {
1734: $rest=join('.',@therest);
1735: } else {
1736: $rest='';
1737: }
1.57 www 1738: my $qualifierrest=$qualifier;
1739: if ($rest) { $qualifierrest.='.'.$rest; }
1740: my $spacequalifierrest=$space;
1741: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 1742: if ($realm eq 'user') {
1.48 www 1743: # --------------------------------------------------------------- user.resource
1744: if ($space eq 'resource') {
1.122 albertel 1745: my %restored=&restore();
1.57 www 1746: return $restored{$qualifierrest};
1.48 www 1747: # ----------------------------------------------------------------- user.access
1748: } elsif ($space eq 'access') {
1749: return &allowed($qualifier,$rest);
1750: # ------------------------------------------ user.preferences, user.environment
1751: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.57 www 1752: return $ENV{join('.',('environment',$qualifierrest))};
1.48 www 1753: # ----------------------------------------------------------------- user.course
1754: } elsif ($space eq 'course') {
1755: return $ENV{join('.',('request.course',$qualifier))};
1756: # ------------------------------------------------------------------- user.role
1757: } elsif ($space eq 'role') {
1758: my ($role,$where)=split(/\./,$ENV{'request.role'});
1759: if ($qualifier eq 'value') {
1760: return $role;
1761: } elsif ($qualifier eq 'extent') {
1762: return $where;
1763: }
1764: # ----------------------------------------------------------------- user.domain
1765: } elsif ($space eq 'domain') {
1766: return $ENV{'user.domain'};
1767: # ------------------------------------------------------------------- user.name
1768: } elsif ($space eq 'name') {
1769: return $ENV{'user.name'};
1770: # ---------------------------------------------------- Any other user namespace
1.29 www 1771: } else {
1.48 www 1772: my $item=($rest)?$qualifier.'.'.$rest:$qualifier;
1.131 albertel 1773: my %reply=&get($space,[$item]);
1.48 www 1774: return $reply{$item};
1775: }
1776: } elsif ($realm eq 'request') {
1777: # ------------------------------------------------------------- request.browser
1778: if ($space eq 'browser') {
1779: return $ENV{'browser.'.$qualifier};
1.57 www 1780: # ------------------------------------------------------------ request.filename
1781: } else {
1782: return $ENV{'request.'.$spacequalifierrest};
1.29 www 1783: }
1.28 www 1784: } elsif ($realm eq 'course') {
1.48 www 1785: # ---------------------------------------------------------- course.description
1.127 ng 1786: return $ENV{'course.'.$ENV{'request.course.id'}.'.'.
1.57 www 1787: $spacequalifierrest};
1788: } elsif ($realm eq 'resource') {
1.127 ng 1789: if ($ENV{'request.course.id'}) {
1.145 www 1790:
1791: # print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1792:
1793:
1.60 www 1794: # ----------------------------------------------------- Cascading lookup scheme
1.147 www 1795: my $symbp;
1796: if ($symbparm) {
1797: $symbp=$symbparm;
1798: } else {
1799: $symbp=&symbread();
1800: }
1.127 ng 1801: my $mapp=(split(/\_\_\_/,$symbp))[0];
1.69 www 1802:
1.127 ng 1803: my $symbparm=$symbp.'.'.$spacequalifierrest;
1804: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
1.69 www 1805:
1.127 ng 1806: my $seclevel=
1.69 www 1807: $ENV{'request.course.id'}.'.['.
1808: $ENV{'request.course.sec'}.'].'.$spacequalifierrest;
1.127 ng 1809: my $seclevelr=
1.69 www 1810: $ENV{'request.course.id'}.'.['.
1811: $ENV{'request.course.sec'}.'].'.$symbparm;
1.127 ng 1812: my $seclevelm=
1.69 www 1813: $ENV{'request.course.id'}.'.['.
1814: $ENV{'request.course.sec'}.'].'.$mapparm;
1815:
1.127 ng 1816: my $courselevel=
1.60 www 1817: $ENV{'request.course.id'}.'.'.$spacequalifierrest;
1.127 ng 1818: my $courselevelr=
1.69 www 1819: $ENV{'request.course.id'}.'.'.$symbparm;
1.127 ng 1820: my $courselevelm=
1.69 www 1821: $ENV{'request.course.id'}.'.'.$mapparm;
1822:
1.60 www 1823: # ----------------------------------------------------------- first, check user
1.127 ng 1824: my %resourcedata=get('resourcedata',
1.131 albertel 1825: [$courselevelr,$courselevelm,$courselevel]);
1.127 ng 1826: if (($resourcedata{$courselevelr}!~/^error\:/) &&
1827: ($resourcedata{$courselevelr}!~/^con_lost/)) {
1.69 www 1828:
1.127 ng 1829: if ($resourcedata{$courselevelr}) {
1830: return $resourcedata{$courselevelr}; }
1831: if ($resourcedata{$courselevelm}) {
1832: return $resourcedata{$courselevelm}; }
1833: if ($resourcedata{$courselevel}) { return $resourcedata{$courselevel}; }
1.69 www 1834:
1.94 www 1835: } else {
1836: if ($resourcedata{$courselevelr}!~/No such file/) {
1837: &logthis("<font color=blue>WARNING:".
1838: " Trying to get resource data for ".$ENV{'user.name'}." at "
1839: .$ENV{'user.domain'}.": ".$resourcedata{$courselevelr}.
1840: "</font>");
1841: }
1.63 www 1842: }
1.95 www 1843:
1.60 www 1844: # -------------------------------------------------------- second, check course
1.96 www 1845:
1.60 www 1846: my $reply=&reply('get:'.
1.96 www 1847: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'.
1848: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1.79 www 1849: ':resourcedata:'.
1850: &escape($seclevelr).'&'.&escape($seclevelm).'&'.&escape($seclevel).'&'.
1851: &escape($courselevelr).'&'.&escape($courselevelm).'&'.&escape($courselevel),
1.96 www 1852: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
1.63 www 1853: if ($reply!~/^error\:/) {
1.79 www 1854: map {
1855: if ($_) { return &unescape($_); }
1856: } split(/\&/,$reply);
1.63 www 1857: }
1.94 www 1858: if (($reply=~/^con_lost/) || ($reply=~/^error\:/)) {
1859: &logthis("<font color=blue>WARNING:".
1.95 www 1860: " Getting ".$reply." asking for ".$varname." for ".
1.96 www 1861: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1.95 www 1862: ' at '.
1.96 www 1863: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1.95 www 1864: ' from '.
1.96 www 1865: $ENV{'course.'.$ENV{'request.course.id'}.'.home'}.
1.94 www 1866: "</font>");
1867: }
1.60 www 1868: # ------------------------------------------------------ third, check map parms
1.65 www 1869: my %parmhash=();
1870: my $thisparm='';
1871: if (tie(%parmhash,'GDBM_File',
1872: $ENV{'request.course.fn'}.'_parms.db',&GDBM_READER,0640)) {
1873: $thisparm=$parmhash{$symbparm};
1874: untie(%parmhash);
1.60 www 1875: }
1.65 www 1876: if ($thisparm) { return $thisparm; }
1.60 www 1877: }
1878:
1879: # --------------------------------------------- last, look in resource metadata
1.71 www 1880:
1.78 www 1881: $spacequalifierrest=~s/\./\_/;
1.71 www 1882: my $metadata=&metadata($ENV{'request.filename'},$spacequalifierrest);
1883: if ($metadata) { return $metadata; }
1.78 www 1884: $metadata=&metadata($ENV{'request.filename'},
1885: 'parameter_'.$spacequalifierrest);
1886: if ($metadata) { return $metadata; }
1.142 www 1887:
1.145 www 1888: # ------------------------------------------------------------------ Cascade up
1889:
1890: unless ($space eq '0') {
1891: my ($part,$id)=split(/\_/,$space);
1892: if ($id) {
1.147 www 1893: my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1894: $symbparm);
1.145 www 1895: if ($partgeneral) { return $partgeneral; }
1896: } else {
1.147 www 1897: my $resourcegeneral=&EXT('resource.0.'.$qualifierrest,
1898: $symbparm);
1.145 www 1899: if ($resourcegeneral) { return $resourcegeneral; }
1900: }
1901: }
1.71 www 1902:
1.48 www 1903: # ---------------------------------------------------- Any other user namespace
1904: } elsif ($realm eq 'environment') {
1905: # ----------------------------------------------------------------- environment
1.127 ng 1906: return $ENV{'environment.'.$spacequalifierrest};
1.28 www 1907: } elsif ($realm eq 'system') {
1.48 www 1908: # ----------------------------------------------------------------- system.time
1909: if ($space eq 'time') {
1910: return time;
1911: }
1.28 www 1912: }
1.48 www 1913: return '';
1.61 www 1914: }
1915:
1.71 www 1916: # ---------------------------------------------------------------- Get metadata
1917:
1918: sub metadata {
1919: my ($uri,$what)=@_;
1.78 www 1920:
1.71 www 1921: $uri=&declutter($uri);
1.73 www 1922: my $filename=$uri;
1923: $uri=~s/\.meta$//;
1.71 www 1924: unless ($metacache{$uri.':keys'}) {
1.140 www 1925: my %metathesekeys=();
1.73 www 1926: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1927: my $metastring=&getfile($perlvar{'lonDocRoot'}.'/res/'.$filename);
1.71 www 1928: my $parser=HTML::TokeParser->new(\$metastring);
1929: my $token;
1.140 www 1930: undef %metathesekeys;
1.71 www 1931: while ($token=$parser->get_token) {
1932: if ($token->[0] eq 'S') {
1.135 www 1933: if (defined($token->[2]->{'package'})) {
1.136 www 1934: my $package=$token->[2]->{'package'};
1935: my $keyroot='';
1936: if (defined($token->[2]->{'part'})) {
1937: $keyroot.='_'.$token->[2]->{'part'};
1938: }
1939: if (defined($token->[2]->{'id'})) {
1940: $keyroot.='_'.$token->[2]->{'id'};
1941: }
1942: if ($metacache{$uri.':packages'}) {
1943: $metacache{$uri.':packages'}.=','.$package.$keyroot;
1944: } else {
1945: $metacache{$uri.':packages'}=$package.$keyroot;
1946: }
1.137 www 1947: map {
1948: if ($_=~/^$package\&/) {
1949: my ($pack,$name,$subp)=split(/\&/,$_);
1.139 www 1950: my $value=$packagetab{$_};
1.144 www 1951: my $part=$keyroot;
1952: $part=~s/^\_//;
1.139 www 1953: if ($subp eq 'display') {
1954: $value.=' [Part: '.$part.']';
1955: }
1956: my $unikey='parameter'.$keyroot.'_'.$name;
1.140 www 1957: $metathesekeys{$unikey}=1;
1.144 www 1958: $metacache{$uri.':'.$unikey.'.part'}=$part;
1.141 www 1959: unless
1960: (defined($metacache{$uri.':'.$unikey.'.'.$subp})) {
1961: $metacache{$uri.':'.$unikey.'.'.$subp}=$value;
1962: }
1.137 www 1963: }
1964: } keys %packagetab;
1.135 www 1965: } else {
1.71 www 1966: my $entry=$token->[1];
1967: my $unikey=$entry;
1.72 www 1968: if (defined($token->[2]->{'part'})) {
1.71 www 1969: $unikey.='_'.$token->[2]->{'part'};
1.136 www 1970: }
1971: if (defined($token->[2]->{'id'})) {
1972: $unikey.='_'.$token->[2]->{'id'};
1.71 www 1973: }
1.72 www 1974: if (defined($token->[2]->{'name'})) {
1.71 www 1975: $unikey.='_'.$token->[2]->{'name'};
1976: }
1.140 www 1977: $metathesekeys{$unikey}=1;
1.71 www 1978: map {
1979: $metacache{$uri.':'.$unikey.'.'.$_}=$token->[2]->{$_};
1.72 www 1980: } @{$token->[3]};
1.78 www 1981: unless (
1982: $metacache{$uri.':'.$unikey}=$parser->get_text('/'.$entry)
1983: ) { $metacache{$uri.':'.$unikey}=
1984: $metacache{$uri.':'.$unikey.'.default'};
1985: }
1.135 www 1986: }
1.140 www 1987: }
1.71 www 1988: }
1.140 www 1989: $metacache{$uri.':keys'}=join(',',keys %metathesekeys);
1.71 www 1990: }
1991: return $metacache{$uri.':'.$what};
1992: }
1993:
1.31 www 1994: # ------------------------------------------------- Update symbolic store links
1995:
1996: sub symblist {
1997: my ($mapname,%newhash)=@_;
1998: $mapname=declutter($mapname);
1999: my %hash;
2000: if (($ENV{'request.course.fn'}) && (%newhash)) {
2001: if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',
2002: &GDBM_WRCREAT,0640)) {
2003: map {
2004: $hash{declutter($_)}=$mapname.'___'.$newhash{$_};
2005: } keys %newhash;
2006: if (untie(%hash)) {
2007: return 'ok';
2008: }
2009: }
2010: }
2011: return 'error';
2012: }
2013:
2014: # ------------------------------------------------------ Return symb list entry
2015:
2016: sub symbread {
1.44 www 2017: my $thisfn=shift;
2018: unless ($thisfn) {
2019: $thisfn=$ENV{'request.filename'};
2020: }
2021: $thisfn=declutter($thisfn);
1.31 www 2022: my %hash;
1.37 www 2023: my %bighash;
2024: my $syval='';
1.45 www 2025: if (($ENV{'request.course.fn'}) && ($thisfn)) {
1.31 www 2026: if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',
2027: &GDBM_READER,0640)) {
2028: $syval=$hash{$thisfn};
1.37 www 2029: untie(%hash);
2030: }
2031: # ---------------------------------------------------------- There was an entry
2032: if ($syval) {
2033: unless ($syval=~/\_\d+$/) {
2034: unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.44 www 2035: &appenv('request.ambiguous' => $thisfn);
1.37 www 2036: return '';
2037: }
2038: $syval.=$1;
2039: }
2040: } else {
2041: # ------------------------------------------------------- Was not in symb table
2042: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
2043: &GDBM_READER,0640)) {
2044: # ---------------------------------------------- Get ID(s) for current resource
2045: my $ids=$bighash{'ids_/res/'.$thisfn};
1.65 www 2046: unless ($ids) {
2047: $ids=$bighash{'ids_/'.$thisfn};
2048: }
1.37 www 2049: if ($ids) {
2050: # ------------------------------------------------------------------- Has ID(s)
2051: my @possibilities=split(/\,/,$ids);
1.39 www 2052: if ($#possibilities==0) {
2053: # ----------------------------------------------- There is only one possibility
1.37 www 2054: my ($mapid,$resid)=split(/\./,$ids);
2055: $syval=declutter($bighash{'map_id_'.$mapid}).'___'.$resid;
2056: } else {
1.39 www 2057: # ------------------------------------------ There is more than one possibility
2058: my $realpossible=0;
2059: map {
2060: my $file=$bighash{'src_'.$_};
2061: if (&allowed('bre',$file)) {
2062: my ($mapid,$resid)=split(/\./,$_);
2063: if ($bighash{'map_type_'.$mapid} ne 'page') {
2064: $realpossible++;
2065: $syval=declutter($bighash{'map_id_'.$mapid}).
2066: '___'.$resid;
2067: }
2068: }
2069: } @possibilities;
2070: if ($realpossible!=1) { $syval=''; }
1.37 www 2071: }
2072: }
2073: untie(%bighash)
2074: }
1.31 www 2075: }
1.62 www 2076: if ($syval) {
2077: return $syval.'___'.$thisfn;
2078: }
1.31 www 2079: }
1.44 www 2080: &appenv('request.ambiguous' => $thisfn);
1.31 www 2081: return '';
2082: }
2083:
2084: # ---------------------------------------------------------- Return random seed
2085:
1.32 www 2086: sub numval {
2087: my $txt=shift;
2088: $txt=~tr/A-J/0-9/;
2089: $txt=~tr/a-j/0-9/;
2090: $txt=~tr/K-T/0-9/;
2091: $txt=~tr/k-t/0-9/;
2092: $txt=~tr/U-Z/0-5/;
2093: $txt=~tr/u-z/0-5/;
2094: $txt=~s/\D//g;
2095: return int($txt);
2096: }
2097:
1.31 www 2098: sub rndseed {
2099: my $symb;
1.44 www 2100: unless ($symb=&symbread()) { return time; }
1.98 albertel 2101: {
2102: use integer;
2103: my $symbchck=unpack("%32C*",$symb) << 27;
1.100 albertel 2104: my $symbseed=numval($symb) << 22;
1.98 albertel 2105: my $namechck=unpack("%32C*",$ENV{'user.name'}) << 17;
1.100 albertel 2106: my $nameseed=numval($ENV{'user.name'}) << 12;
1.98 albertel 2107: my $domainseed=unpack("%32C*",$ENV{'user.domain'}) << 7;
2108: my $courseseed=unpack("%32C*",$ENV{'request.course.id'});
2109: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.99 albertel 2110: #uncommenting these lines can break things!
2111: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
2112: #&Apache::lonxml::debug("rndseed :$num:$symb");
1.98 albertel 2113: return $num;
2114: }
1.36 albertel 2115: }
2116:
1.76 www 2117: sub ireceipt {
2118: my ($funame,$fudom,$fucourseid,$fusymb)=@_;
2119: my $cuname=unpack("%32C*",$funame);
2120: my $cudom=unpack("%32C*",$fudom);
2121: my $cucourseid=unpack("%32C*",$fucourseid);
2122: my $cusymb=unpack("%32C*",$fusymb);
1.77 www 2123: my $cunique=unpack("%32C*",$perlvar{'lonReceipt'});
1.76 www 2124: return unpack("%32C*",$perlvar{'lonHostID'}).'-'.
2125: ($cunique%$cuname+
2126: $cunique%$cudom+
2127: $cusymb%$cuname+
2128: $cusymb%$cudom+
2129: $cucourseid%$cuname+
2130: $cucourseid%$cudom);
2131: }
2132:
2133: sub receipt {
2134: return &ireceipt($ENV{'user.name'},$ENV{'user.domain'},
2135: $ENV{'request.course.id'},&symbread());
2136: }
2137:
1.36 albertel 2138: # ------------------------------------------------------------ Serves up a file
2139: # returns either the contents of the file or a -1
2140: sub getfile {
2141: my $file=shift;
1.37 www 2142: &repcopy($file);
1.36 albertel 2143: if (! -e $file ) { return -1; };
2144: my $fh=Apache::File->new($file);
2145: my $a='';
2146: while (<$fh>) { $a .=$_; }
2147: return $a
2148: }
2149:
2150: sub filelocation {
2151: my ($dir,$file) = @_;
2152: my $location;
2153: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.59 albertel 2154: if ($file=~m:^/~:) { # is a contruction space reference
2155: $location = $file;
2156: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.36 albertel 2157: } else {
1.59 albertel 2158: $file=~s/^$perlvar{'lonDocRoot'}//;
2159: $file=~s:^/*res::;
2160: if ( !( $file =~ m:^/:) ) {
2161: $location = $dir. '/'.$file;
2162: } else {
2163: $location = '/home/httpd/html/res'.$file;
2164: }
1.36 albertel 2165: }
2166: $location=~s://+:/:g; # remove duplicate /
1.46 www 2167: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
2168: return $location;
2169: }
1.36 albertel 2170:
1.46 www 2171: sub hreflocation {
2172: my ($dir,$file)=@_;
2173: unless (($_=~/^http:\/\//i) || ($_=~/^\//)) {
2174: my $finalpath=filelocation($dir,$file);
2175: $finalpath=~s/^\/home\/httpd\/html//;
2176: return $finalpath;
2177: } else {
2178: return $file;
2179: }
1.31 www 2180: }
2181:
2182: # ------------------------------------------------------------- Declutters URLs
2183:
2184: sub declutter {
2185: my $thisfn=shift;
2186: $thisfn=~s/^$perlvar{'lonDocRoot'}//;
2187: $thisfn=~s/^\///;
2188: $thisfn=~s/^res\///;
2189: return $thisfn;
1.12 www 2190: }
2191:
2192: # -------------------------------------------------------- Escape Special Chars
2193:
2194: sub escape {
2195: my $str=shift;
2196: $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
2197: return $str;
2198: }
2199:
2200: # ----------------------------------------------------- Un-Escape Special Chars
2201:
2202: sub unescape {
2203: my $str=shift;
2204: $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2205: return $str;
2206: }
1.11 www 2207:
1.1 albertel 2208: # ================================================================ Main Program
2209:
2210: sub BEGIN {
2211: if ($readit ne 'done') {
2212: # ------------------------------------------------------------ Read access.conf
2213: {
2214: my $config=Apache::File->new("/etc/httpd/conf/access.conf");
2215:
2216: while (my $configline=<$config>) {
2217: if ($configline =~ /PerlSetVar/) {
2218: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
1.8 www 2219: chomp($varvalue);
1.1 albertel 2220: $perlvar{$varname}=$varvalue;
2221: }
2222: }
2223: }
2224:
2225: # ------------------------------------------------------------- Read hosts file
2226: {
2227: my $config=Apache::File->new("$perlvar{'lonTabDir'}/hosts.tab");
2228:
2229: while (my $configline=<$config>) {
2230: my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
2231: $hostname{$id}=$name;
2232: $hostdom{$id}=$domain;
2233: if ($role eq 'library') { $libserv{$id}=$name; }
2234: }
2235: }
2236:
2237: # ------------------------------------------------------ Read spare server file
2238: {
2239: my $config=Apache::File->new("$perlvar{'lonTabDir'}/spare.tab");
2240:
2241: while (my $configline=<$config>) {
2242: chomp($configline);
2243: if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
2244: $spareid{$configline}=1;
2245: }
2246: }
2247: }
1.11 www 2248: # ------------------------------------------------------------ Read permissions
2249: {
2250: my $config=Apache::File->new("$perlvar{'lonTabDir'}/roles.tab");
2251:
2252: while (my $configline=<$config>) {
2253: chomp($configline);
2254: my ($role,$perm)=split(/ /,$configline);
2255: if ($perm ne '') { $pr{$role}=$perm; }
2256: }
2257: }
2258:
2259: # -------------------------------------------- Read plain texts for permissions
2260: {
2261: my $config=Apache::File->new("$perlvar{'lonTabDir'}/rolesplain.tab");
2262:
2263: while (my $configline=<$config>) {
2264: chomp($configline);
2265: my ($short,$plain)=split(/:/,$configline);
2266: if ($plain ne '') { $prp{$short}=$plain; }
1.135 www 2267: }
2268: }
2269:
2270: # ---------------------------------------------------------- Read package table
2271: {
2272: my $config=Apache::File->new("$perlvar{'lonTabDir'}/packages.tab");
2273:
2274: while (my $configline=<$config>) {
2275: chomp($configline);
2276: my ($short,$plain)=split(/:/,$configline);
1.143 www 2277: my ($pack,$name)=split(/\&/,$short);
2278: if ($plain ne '') {
2279: $packagetab{$pack.'&'.$name.'&name'}=$name;
2280: $packagetab{$short}=$plain;
2281: }
1.25 www 2282: }
2283: }
2284:
2285: # ------------------------------------------------------------- Read file types
2286: {
2287: my $config=Apache::File->new("$perlvar{'lonTabDir'}/filetypes.tab");
2288:
2289: while (my $configline=<$config>) {
2290: chomp($configline);
2291: my ($ending,$emb,@descr)=split(/\s+/,$configline);
2292: if ($descr[0] ne '') {
2293: $fe{$ending}=$emb;
2294: $fd{$ending}=join(' ',@descr);
2295: }
1.11 www 2296: }
2297: }
2298:
1.71 www 2299: %metacache=();
1.22 www 2300:
1.1 albertel 2301: $readit='done';
1.12 www 2302: &logthis('<font color=yellow>INFO: Read configuration</font>');
1.1 albertel 2303: }
2304: }
2305: 1;
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonnet.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / lonnet / perl